#!/usr/bin/perl -w

######################################################################
###
###   IMPORTANT!
###   Please read the warranty and legal notice 
###   at the end of this file!
###
######################################################################

require 5.000;
use lib '/usr/local/bin/',"$ENV{HOME}/bin/",'/usr/stud/loescher/bin/';
use slutil;
use English;

######################################################################
### Voreinstellungen
######################################################################

$version = '1.0';
$ENV{XMCD_LIBDIR} = '/usr/X11R6/lib/X11/xmcd';
$Vorwarnzeit      = 20; # Sekunden

######################################################################
### Hauptprogramm
######################################################################

printumlaute "\nCD-Countdown 1.0   -   von Stephan Löscher\n";
print          "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";

# &Hilfe if ( (!defined which("cda")) || (!defined $ARGV[0]) );
 &Hilfe if ( (!defined which("cda")) || (defined $ARGV[0]) );

die "Ich kann 'cda' nicht finden!\n" unless defined which("cda");

system("cda on >/dev/null 2>/dev/null");
$retry = 0;
while ($retry < 10)
{
  open(CDA, "cda toc 2>/dev/null |") || die "Fehler bei CDA!\n";
  @lieder = grep(/\s*\d\d\s\d\d:\d\d\s+.*/,<CDA>);
  close CDA;
  unless (@lieder)
  {
    print "CD nicht bereit... Neuer Versuch...\n";
    sleep 1;
  }
  $retry++;
}
unless (@lieder)
{
  die "Fehler beim Lesen der CD!\nHilfe durch Parameter '-h'.\n";
  system("cda off 2>/dev/null");
}
system("cda off 2>/dev/null");
system("eject");

print @lieder;

print "\nStart des Countdowns mit Enter...\n";
readkey;

foreach $lied (@lieder)
{
  $lied =~ /(\d\d)\s(\d\d):(\d\d)/;
  ($nummer,$min,$sec) = ($1,$2,$3);
  sleep($min*60+$sec-$Vorwarnzeit);
  system("xmessage -geometry 349x143+325+334 -display :0.0 \'In $Vorwarnzeit" .
	 " Sekunden fängt das Lied " . ($nummer+1) . " an!\' &");
  sleep $Vorwarnzeit;
}


######################################################################
### Unterprogramme
######################################################################

sub Hilfe
{
  printumlaute
"Keine Parameter. (Außer '-h' für Hilfe.)
Zweck und Benutzung dieses Programms:
Vorraussetzungen:
- Sie müssen CDA (aus xmcd-2.0pl2-bin.tar.gz) installiert haben.
- Sie müssen einen CD-Player, DAT und CDROM haben.
- Sie müssen sich schon einmal darüber geärgert haben, dass man manche CDs
  nicht mit AutoSpace überspielen kann und immer etwas zu spät die Start-Marken
  von Hand setzt, weil man gerade etwas am PC erledigt.
Vorgehen:
- Musik-CD, die auf DAT überspielt werden soll in das CDROM einlegen.
- cdcountdown starten.
- CD in den CD-Player einlegen und DAT auf Bereitschaft schalten.
- Enter drücken und gleichzeitig Überspielung starten.
CD-CountDown erzeugt von nun an immer 20 Sek. vor Beginn des nächsten Liedes
eine XMessage, die Sie daran erinnert, eine Start-ID zu setzen.

";
exit;
}


######################################################################
#
# Warranty and legal notice
# ~~~~~~~~~~~~~~~~~~~~~~~~~
#
# Copyright (c) 1997 by Stephan Löscher  -  all rights reserved
# My Address: Stephan Löscher, Dr.Troll-str. 3, 82194 Gröbenzell, Germany
# Email: loescher@gmx.de
# WWW: http://www.loescher-online.de/
#
# This program is freeware.
# It is NOT Public-Domain-Software!
# The author (Stephan Löscher) does NOT give up his copyright, but he 
# reserves his copyright. Usage and copying is free of charge for private
# use, but NOT for commercial use!
# 
# You may and should copy this program free of charge, use it,
# give it to your friends, upload it to a BBS or something similar, under
# the following conditions:
# * Don't charge any money for it. If you upload it to a BBS, make sure that
#    it can be downloaded free (without paying for downloading it, except
#    for usage fees that have to be paid anyway). Small copying fees (up to
#    5 DM or 3 $US) may be charged.
#  * Only distribute the whole original package, with all the files included.
#  * This program may not be part of any commercial product or service without
#    the written permission by the author.
#  * If you want to include this program on a CD-ROM and/or book, please send
#    me a free copy of the CD/book (this is not a must, but I would appreciate
#    it very much).
# 
# Distribution of the program is explicitly desired, provided that the above
# conditions are accepted.
# 
# YOU ARE USING THIS PROGRAM AT YOUR OWN RISK! THE AUTHOR (STEPHAN LÖSCHER)
# IS NOT LIABLE FOR ANY DAMAGE OR DATA-LOSS CAUSED BY THE USE OF THIS PROGRAM
# OR BY THE INABILITY TO USE THIS PROGRAM. IF YOU ARE NOT SURE ABOUT THIS, OR
# IF YOU DON'T ACCEPT THIS, THEN DO NOT USE THIS PROGRAM!
# BECAUSE OF THE VARIOUS HARDWARE AND SOFTWARE ENVIRONMENTS INTO WHICH THIS
# PROGRAM MAY BE PUT, NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE IS
# OFFERED.
# GOOD DATA PROCESSING PROCEDURE DICTATES THAT ANY PROGRAM BE THOROUGHLY
# TESTED WITH NON-CRITICAL DATA BEFORE RELYING ON IT.
# 
# No part of the documentation may be reproduced, transmitted, transcribed,
# stored in any retrieval system, or translated into any other language in
# whole or in part, in any form or by any means, whether it be electronic,
# mechanical, magnetic, optical, manual or otherwise, without prior written
# consent of the author, Stephan Löscher.
# 
# You may not make any changes or modifications to this software or this
# manual. You may not decompile, disassemble, or otherwise reverse-engineer
# the software in any way.
# If you got the source, then you are permitted to modify it if you
# contact me and tell me your enhancements.
# You also may include the source as a whole or parts of it into other
# programs, as long as you don't make profit directly out of selling
# the result. If you re-use code of this program then do not remove my name!
# If you include this source-code in your projects, mark it clearly as such
# "... derived from code XXX by Stephan Löscher".
# But don't distribute modified code!
# 
# If you believe your copy of this software has been tampered or altered in
# anyway, shape or form, please contact me immediately! Do not hesitate a
# moment to inform me. Remember, this software should be available to all, in
# the original form, so please do not accept modified or damaged versions of
# my software.
# 
# The author reserves his right for taking legal steps if the copyright or the
# license agreement is violated.
# 
# All product names mentioned in this software are trademarks or registered
# trademarks of their respective owners.
# 
# If you have any questions, ideas, suggestions for improvements or if you find
# bugs (I don't hope so.) then feel free to contact me. (Email is appreciated.)
# 
# I'm not a native english speaker. If you are one and discover some strange
# sounding parts in this documentation or in the program, please, feel free
# to point it out to me and give me suggestions for alteration!
# 
# If the program works for you, and you want to honour my efforts, you are
# invited to donate as much as you want... :)
#
# In any case, if you don't like the restrictions in this license, contact
# me, and we can work something out.
#
######################################################################